n. [ OE. morter, AS. mortēre, L. mortarium: cf. F. mortier mortar. Cf. sense 2 (below), also 2d Mortar, Martel, Morter. ]
Mortar bed (Mil.),
Mortar boat
Mortar vessel
Mortar piece,
n. [ OE. mortier, F. mortier, L. mortarium mortar, a large basin or trough in which mortar is made, a mortar (in sense 1, above). See 1st Mortar. ] (Arch.) A building material made by mixing lime, cement, or plaster of Paris, with sand, water, and sometimes other materials; -- used in masonry for joining stones, bricks, etc., also for plastering, and in other ways. [ 1913 Webster ]
Mortar bed,
v. t. To plaster or make fast with mortar. [ 1913 Webster ]
n. [ F. mortier. See Mortar a vessel. ] A chamber lamp or light. [ Obs. ] Chaucer. [ 1913 Webster ]